Are you asking if you can target .NET 4.0 with VS 2008? Highly unlikely. However, VS2010 will give you a choice of Runtime versions from 4 downwards. VS2008 wi

Are you asking if you can target .NET 4.0 with VS 2008? Highly unlikely. However, VS2010 will give you a choice of Runtime versions from 4 downwards. VS2008 will give you a choice of Runtime versions from 3.5 downwards.